/*
 * Copyright 2024 LinQingYing. and contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of this source code is governed by the Apache License 2.0,
 * which allows users to freely use, modify, and distribute the code,
 * provided they adhere to the terms of the license.
 *
 * The software is provided "as-is", and the authors are not responsible for
 * any damages or issues arising from its use.
 *
 */

package com.linqingying.cangjie.utils

import com.linqingying.cangjie.resolve.lazy.NoDescriptorForDeclarationException
import com.intellij.psi.PsiElement

/**
 * Best effort to analyze element:
 * - Best effort for file that is out of source root scope: NoDescriptorForDeclarationException could be swallowed
 * - Do not swallow NoDescriptorForDeclarationException during analysis for in source scope files
 */
inline fun <T> PsiElement.actionUnderSafeAnalyzeBlock(
    crossinline action: () -> T,
    crossinline fallback: () -> T
): T = try {
    action()
} catch (e: Exception) {
    e.returnIfNoDescriptorForDeclarationException(condition = {
        val file = containingFile
        it && (!file.isPhysical || !file.isUnderCangJieSourceRootTypes())
    }) { fallback() }
}


val Exception.isItNoDescriptorForDeclarationException: Boolean
    get() = this is NoDescriptorForDeclarationException || cause?.safeAs<Exception>()?.isItNoDescriptorForDeclarationException == true

inline fun <T> Exception.returnIfNoDescriptorForDeclarationException(
    crossinline condition: (Boolean) -> Boolean = { v -> v },
    crossinline computable: () -> T
): T =
    if (condition(this.isItNoDescriptorForDeclarationException)) {
        computable()
    } else {
        throw this
    }

